





Decided by Marshal de Villars in 1706, they were intended to lock the north of Alsace during the war of succession to the Spanish throne (1701-1714). Thus, 50 redoubts and 28 dikes constituted a continuous parapet allowing the valley to be flooded. An important redoubt was named Maréchal de Bourg, the man who improved and increased the lines in the Scherhol area.